Mumbai has received less than half its annual rainfall this monsoon until July 21, as compared to the rainfall received last year. Despite an early monsoon onset this year, with some areas receiving heavy rainfall initially, the overall rainfall in the city has been less than average. The monsoon arrived at least two weeks early this year on May 26.

Until 21 July, the Colaba observatory has recorded 35.61 per cent of Mumbai’s annual rainfall, and the Santacruz observatory has recorded 39.34 per cent of annual rainfall. On the same day last year, the Colaba observatory had recorded 74.04 per cent of rainfall, and the Santacruz observatory had recorded 68.01 per cent of annual rainfall.

Mumbai receives an average of 2207 mm of rainfall annually, and so far this year, the Colaba observatory has recorded 746 mm of rainfall against the annual average of 2095 mm. Until the same day last year, this figure stood at 1551.1 mm. Similarly, the Santacruz observatory has recorded 912.2 mm of rainfall so far this year, against an annual average of 2319 mm. Until the same day last year, Santacruz observatory had recorded 1578.9 mm of rainfall.